Saddle construction.



J. E. DOYLE. SADDLE coNsTucnoN.

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APPLICATION man Nov. lo, 191'3.

Patented Apr. 17, 1917.

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uns raies rarnrir onirica JAMES E. ports, Cris-ontario, Cirio, assiencs or cnn-nerr ro errantes s. sermon, or CLEVELAND, ortie.

seniors CONSTRUCTION.

Application filed November 10, 1913.

To all whom t may concern:

Bc it known that l', drains lli. OYLE, a citi'fzen of the llnited States, residing at Cleveland, in the county of Cuyahoga, State of vOhio, have invented a new and useful improvement in Saddle Constructions, of which the following is a specication, the principle of the inv ition being herein explained and the best mode in which I have contemplated applying the principle, so as to distinguish it from other inventions.

This invention relates to inking roll and vibrator supporting saddles such as are employed `in printing presses of the Gordon type. .1li general object is the improving of several details thereof. More specific objects are the provisions of a take-down vibrator and inking` rolls which will operate more precisely and durably. 1

rlhe inventive conception is embodied in means which are hereinafter explainedand variously combined in the claims, while the annexed drawing and particular description thereof together set forth in detail several certain means constitutingl my invention, the disclosed means however, being but some of various mechanical forms in which the principle of my invention may be applied.

Figure is a vertical section on the longitudinal center line of the saddle, showing the vibrator' in section and one inking roll in cleiation.

Fig. ll is a longitudinal section of an inking roll.

lll is an elevation of one end of the saddle.

Fig. 1V is an elevation of the opposite end.

Fig. V is an end elevation of certain connecter parts, disassembled from the saddle.

Referring` now to the drawing:

rlhe construction represented indicates portions of two parallel tracks 1 to be sup` ported on a frame not shown. One of the tracks has mounted alongside so as to be flush with its upper surface a rack 2. The usual actuating rods 3 extend outwardly adjacent the tracks 1 and their propulsion need not be indicated since the manner in which they articulate with the carrier or swinging frame is well known to the art.

ri. pair of primary brackets l are firmly connected with the upper ends of the rods 3 respectively, through the medium of screws 5.

Each of these brackets is formed near its Specification of Letters Patent.

Patented ipr. 1?, 1917.

serial No. 800,058.

top with forward and rearwardly projecting extensions 6 which are provided with horizontal slots 7 extending therethrough in a direction transverse to the extent of the track. Inclosing'the extensions 6 on either side and depending therefrom are two pairs of open-bearing members' 8 having openings registering with said slots respectively. These members are movably secured to the respective extensions G through the medium of pins 9. A set screw 10 extends'through a transversely intersecting opening in each of the extensions 6 and is adapted to engage one of the pins 9 in order to adjust the same toward the middle of the saddle by way of compensation for the wear upon a certain part. as will be better comprehended later. Two pairs of rollers 11 which are fixedly mounted each upon one of two shafts 12, are designed to travel back and forth upon the tracks 1. As so posit-ioned each of the shafts 12 is adapted to extend across the two tracks and rest against the open and under bearing surfaces of laterallv opposite pairs of the bearing blocks d. This is common to the art. The shafts l2 both support intermediately of the rollers 11 and loosely, a sleeve 13 which should be somewhat shorter than the space intervening between the rollers. Fixedly surrounding the sleeves 13 are composition rolls 14; and these should likewise be spaced a slight distance from the extremities of the sleeves as best seen in Fig. Il. The rolls 1li are intended to move over the surface of the inking disk shown in Fig. l and designated by the reference character D The brackets l1 are provided above and on a medial line with right-angular depressions 15 which shall serve as seats. On corresponding or as assumed the rear sides of the seats 'l5 the brackets t are provided with pins 16 upon which a pair of latches 17 are pivotally attached. These latches extend across the seats 15 and have their free extremities bent downwardly at 18. rlhe brackets -1 are furthermore each formed on the side opposite to that on which the pins 16 are located with inwardly converging recesses 19. Thumb screws 20 extend in a horizontal direction through the depending` extremities 18 and are adapted to project into the recesses 1.9. In this manner the latches 17 may be held down or released to swing Vupwardly as required.

That bracket 4 which is disposed on the same side as the rack 2 is provided with a bearing block 21 adapted to snugly fit the seat 15 and be held in place therein by one of the latches 17. This particular block is provided inwardly of the bracket with a depending portion 22 which abuts the inner surface of such bracket, as best seen in Fig. I. Mounted in this portion is a bushing 23 provided on its outer end with a shoulder 24. An idler gear 25 is rotatably mounted upon the bushing 23 between the portion 22 and the shoulder 24 so as to be in mesh with the rack 2. The advantage in so -mounting the idler is quite decided in that it permits the withdrawal thereof along with the vibrator, and subjects it to markedly less wear than when mounted as heretofore on one of the composition roll shafts. The saddle construction as a whole is furthermore more symmetrical, better balanced and therefore more easily propelled. This bushing is held in place by means of the screw 26. Rotatebly mounted in the bearing block 21 is a spline shaft 27, having the usual key formation 28. The outer end 29 of the spline shaft 27 is of reduced diameter and is similarly provided with a key formation 30. A driving gear 31 is formed on a journal sleeve 32 which is keyed upon the end 29 of the shaft. A nut 33 holds the shaft and gear in place. The gear 31 is in mesh with the idler 25. As so mounted and as will be readily understood the gear 31 may impart rotation transmitted from the idler to the spline shaft 27. The other extremity 34 of the spline shaft is of reduced diameter.

Disposed in the seat 15 of the other bracket 4 is a bearing block 35. In this a hollow coperative shaft 36 is mounted for occasional rotation only. The bearing block 35 is likewise held in place by means of the other latch 17 or permitted to be withdrawn when the latter is loosened and swung upwardly. The hollow shaft 36 is provided intermediately of its ends with squared male threads 37. lts bore 33 is of a size such that it may permit of a telescopic connection with the reduced end 34 of the spline shaft 27 as is apparent again from the inspection of Fig. I. The opposite extremity of the shaft 36 has pinned upon it exteriorly of the bracket 4 a ratchet 39 for an incidental and conjunctive purpose to be now in part explained. The bracket 4 is made to support integrally or otherwise a tubular boss 40 in which a plungerl 41 is adapted to slide. This plunger supports a dog 42 which projecting from the boss 40 is normally made to engage the ratchet through the medium of an inclosed spring 43. The opposite end of the boss 40 may be closed with a set screw 44 by means of which the force exerted by the spring 43 may be varied at will. The shaft 36 is thus ordinarily prevented from turning by reason of the engagement of the dog 42 with the ratchet 39.

This shaft is furthermore providedl intermediately of the bracket 4 and the threads 37 with a safety pin 45 whose function will be elucidated further on.

Keyed upon the spline shaft 27 is a hub 46. ik hollow member 47 also surrounds the shaft 36 and is provided with female screw threads 4S adapted to coperate with the male threads 37. This member 47 is provided near one end and inwardly with an annular recess 49 of considerable breadth of extent and adapted to inclose the pin 45. Extending through the member 47 near opposite ends of the recess 49 are a pair of alined abutting screws 50 which lie on opposite sides of the pin 45. The near extremity 51 of the member 47 or that portion in which the female threads are formed is of reduced exterior diameter and in fact of corresponding diameter as the hub 46. By reason 0f this circumstance a right-angular shoulder is formed. Surrounding theI hub 46 and the portion 51 is an intermediary or supporting tube 53 which is provided adjacent the shoulder 52 with a key 54. ln its position against the shoulder the opposite end of the tube 53 is spaced a short distance from the outer extremity of the hub 46 and there provided with screw-threads 55. Gpposite sides of this tube 53 are secured to the portion 51 by means of screws 46. Surrounding the tube 53 is a sleeve 57 and this latter is keyed with respect thereto at 58. lts periphery is furthermore flush with the periphery of the member 47. A screw-cap 59 corresponding in major thickness with the combined thickness of the tube 53 and sleeve 57 is adapted to coperatel with the screw threads 55 to abut the sleeve 57 and hold it in place. The cap 59 and incidentally the tube are seen locked with respect to the hub 46 through the medium of a screw 60. The periphery of the screw cap 59 should preferably be Hush with that of the sleeve 57 and likewise its transverse edge with the near edge of the hub 46. As may now have been anticipated so much of the construction (primarily the sleeve 57 as is supported upon the spline shaft 27 and hollow shaft 36, constitutes in reality a vibrator capable of being disassembled for either replacement or repair. Such composite vibrator including particularly the peripheries of the member 47, sleeve 57- and cap 59, by reason .of being mounted in the medial perpendicular plane of th-e brackets 4 is adapted to lie between the rolls 14 and has frictional lineal contact therewith in the usual way. This frictional engagement may be maintained as earlier mentioned according to the measure required to odset the gradual wear of the rolls 14 through the medium of the four adjusting screws 10 which cause the proxiynx mate pins 9 and hence the corresponding members 8 and shafts 12, to approach each The operation of the several features of my inventive saddle construct-ion may be separately described as follows:

[viking rolls.

llilherc the rods 3 are indirectly actuated the saddle construction as a whole is moved in one direction or the other such that the rollers 11 are caused to travel upon the tracks 1. r1`hese rollers by reason of being contiguous respectively with the inner surfaces of the members S, are precluded from traversing the tracks in anything other than a. straight line. In the meantime the vibra tor construction and specifically the sleeve 57 tends to slide the rolls 14C axially, due to t-he friction therebetween. ln response to this tendency the sleeves 13 are caused to slide in a corresponding direction upon the shafts 12, until the advanced extremities thereof engage the inner surface of the two rollers 11 which they are approaching. The limiting of the axial travel of the composition rolls lll is therefore made positive and hence precise, and what is also important the damaging effect of having the composiw .tion rolls themselves impinge upon a hard surface is avoided.

Latcws.

W'hen the two latches 17 are both lifted the blocks Vand vibrator construction carried thereby may be removed. ln so doing the idler is necessarily also withdrawn and thus the very simple procedure suggested in Fig. V is demonstrated.

Vibrator.

l/Vhile the larger threads afforded by my composite vibrator construction are even iii themselvesmore durable than any till now adopted and are furthermore inclosed, it is nevertheless desirable that they be protected in regard to violent shock at opposite limits of their relative movement. rlhe vibrator on a press of this type is not infrequently rotated independently of the driving mechanism either when removed or during the cleaning operation, and thus it could readily happen that one limit of its axial movement became reached prior to the finish of such reciprocation of the saddle as operated to move it'in the direction of that particular of the two limits. It is to relieve the threads of those shocks which might be encountered at such time that the pin 4-5 and screws 50 are provided. The arrangement is such that either one or the other of these screws 50 engages the pin Ll just prior to the limit of movement of the threaded formation in a given direction. lnasmuch, however, as the vibrator must either move relatively to the shaft 36 or the latter rotate with it, an arrangement whereby the substitution-of the latter may be accomplished, is provided. lifter the axial movement of the vibrator has been checked by the engagement of one of the screws with the pin l5 lthe force then tending to rotate the shaft 36 is allowed to overcome the force of the spring 43 and turn the ratchet against the tapered extremity of the dog 4t2. ln this manner the possibility of damage to the threads is obviated.

My inventive vibrator avoids a measure of complication in respect to the construction of the bracket Ll which is farthest from the driving' agency. The principal factor of merit aside of the mode devised for its propulsion, is associated with it-s conversion to the service of multi-color work. Upon removal of the cap 59 the sleeve 57 may be slid olf and another having annular grooves substituted therefor, whereby its adaptation for cooperative use with the invention shown described and claimed in my pending application entitled Printing press appliance, filed November fth, 1913, Serial Number 7 99,301, is in turn assured.

My invention being thus described with sucient thoroughness, what l desire to cure by Letters Patent and therefore claim specifically, is

1. In a saddle construction the combination of a saddle, a. shaft upon said saddle, rollers xed near opposite ends of said shaft, a sleeve loosely mounted intermediately of and spaced from said rollers, and a composition roll fixedly inclosing said sleeve and spaced from opposite ends thereof.

2. 1n a saddle construction the combination of a saddle, a bearing member thereon, said saddle being provided with a convert; ing recess adjacent one side of said bearing, a latch hinged to said saddle on the other side of said bearing and extending across the same, and means for fixing said latch relative to such recess.

3. In a saddle construction the combina.- tion of a saddle provided above with a seat, a bearing block snugly resting in said seat, said saddle being formed laterally of said seat with a converging recess, a latch pivotally secured to said saddle and overlying said block, said latch having a depending extremity adapted to overhang said recess, and a thumb screw extending through said extremityand adapted to occupy said recess.

il. In a saddle construction the combination of a composition roll, a bracket formed above with a depressed seat, a. bearing bleek detachably disposed in said seat and having a depending portion laterally beyond said composition roll, a spline shaft extending through said block, a gear keyed to said shaft, a vibrator slidably mounted upon the latter, means for adjusting said composition roll into frictional engagement with said vibrator, means for sliding said vibrator axially, and an idler mounted upon said depending portion and in mesh with said gear whereby both gear and idler may be removed irrespective of the adjustment of said composition roll.

'5. In a saddle construction the combination of a bearing block, a spline shaft mounted therein, a gear fixed upon the latter, means for rotating said gear, a member keyed to said spline shaft and movable therewith, a vibrator slidable upon and detachable from said member and means for fixing said vibrator with respect to the latter.

G. In a saddle construction the combination of a pair of bearing blocks, a spline Yshaft mounted in one, a gear thereon, means for rotating the latter, a hollow shaft mounted in the other of said blocks and having telescopic connection with said spline shaft, said hollow shaft being furthermore provided exteriorly with screwthreads, a member keyed to said spline shaft, a hollow member having female screvthreads adapted to eoperate with said male threads and a vibrator surrounding and fixed to said mem# bers.

7. In a saddle construction the combination of a bracket, a shaft mounted thereon, a projection upon said shaft, a member surrounding said shaft, and means for effecting the relative movement of said shaft and member in the direction of the axis of the former, said member being provided interiorly with an annular recess inclosing said projection and adapted to limit such relative movement.

S. In a saddle construction the combination of a pair of brackets, a spline shaft vmounted in one of said brackets, means for rotating such shaft, a hollow shaft mounted in the other of said brackets and having telescopic connection with said spline shaft, said hollow shaft having male screw threads and a projection adj aoent thereto, and a vibrator roll keyed near one end to said spline shaft and provided with female screw threads engaging with said male threads, said roll being furtherfore provided interiorly with an annular recess inclosing said projection and adapted to limit the axial movement of said roll.

9. In a saddle construction the combination of a saddle, a shaft thereon, rollers fixed near the ends of said shaft, a composition roll enveloping said shaft intermediately of said rollers, a member interposed between said shaft and roll, said member being loose relative to the shaft and fixed rela tive to the roll, said member being furthermore longer than said roll and shorter than the distance between said rollers, a vibrator rotatable in said saddle and frictionally engaging said roll, and means for moving said vibrator in the direction of its axis whereby said member abuts one of said rollers.

lO. In a saddle construction the combination of a saddle, a pair of inking rolls thereon, said saddle provided above with a pair of seats, a pair of bearing blocks removably fitted in said seats, a vibrator mounted in said blocks so as to frictionally engage said rolls, a gear upon said vibrator shaft, and an idler carried by one of said blocks underneath and in mesh with said gear whereby the same may be withdrawn independently of said inking rolls.

Signed by me this 7th day of November', 1913.

JAMES E. DOYLE.

Attested by:

WINNIFRED M. BRACKEN, CURT B. MUELLER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

